2. Mix eggs, pumpkin and banana together until combined. Knead in powdered milk, chicken base and 2 1/2 cups flour until thoroughly combined. Add additional flour if dough is too sticky.
3. Roll out dough 1/4" thick and cut with cookie cutters, knife or pizza cutter. Prick each treat with a fork {see Notes}. Place on parchment lined baking sheet and bake 15-20 minutes. Flip treats over and bake for an additional 15-20 minutes or until golden brown and very hard. Cool completely.
Notes
Pricking the treats with a fork isn't completely necessary, but if you don't do it, treats will end up puffing up a bit.